package com.shp.utils;

import org.springframework.lang.Nullable;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Description:
 * ip拦截
 * @author zwl
 * @version 1.0
 * @date 2020/4/30 8:13
 */
public class IpInterceptor implements HandlerInterceptor {
    /**
     * 前置拦截器
     */
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        String ip = IpUtil.getIp(request);
        System.out.println("{'ip':" + ip + "}");
        if(IpUtil.checkIpBreak(ip)){
            response.sendError(404,"你已经被拉入黑名单，请联系管理员");
            return false;
        }
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, @Nullable ModelAndView modelAndView) throws Exception {
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, @Nullable Exception ex) throws Exception {
    }
}
